Soap preparation



Patented May 2, 1933 UNITED STATES PATENT OFFICE.

JOSEPH N'UESSLEIN, OF LUDWiGSHAFEN-ON-THE-RHINE, GERMANY, ASSIGNOR TO I.G. FARBENINDUSTRIE AKTIENGESELLSCHAFT, OF FRANKFORT-ON-THE-MAIN, GER-MANY SOAP PREPARATION No Drawing. Application filed March 26; 1931,Serial No. 525,603, and in Germany April 7, 1930.

The present invention relates to new and basic oxygen-containing mineralacids, as

for example sulphuric acid or phosphoric acid, and non-aromatic, i. e.aliphatic or cycloaliphatic alcohols or oleiines or olefinic alcoholshaving more than 8 carbon atoms, or of the true sulphonic acids, ortheir salts, of any non-armomat-ic, i. e. aliphatic or hydroaromaticcompounds containing at least 8 carbon atoms, preferably from 10 to 16carbon atoms, as for example of acids of fats or oils of vegetable oranimal origin, fatty acid esters, amides, or alcohols, ethers orhydrocarbons, in which esters or amides or other derivatives thesulphonic group may be contained in the component of low molecularweight. Such products are obtainable, for example, by the condensationof hydroxylated or halogenated derivatives of ethane, mono ordi-sulphonic acid or of ethionic acid, carbyl sulphate or aminosulphonicacids with higher fatty acids, such as the fatty acids of vegetal originor their synthetic equivalents, or their derivatives or salts of thesecompounds. These last-mentioned esters and amides correspond to thegeneral formula RCOXR SO Me,

in Which R denotes an aliphatic radicle,

" er/an amino-alkylene radicle and Me denotes an alkali radicle. Thus,for example,

' acid sulphuric esters of high molecular aloxidation of paraffinhydrocarbons, may be I. very advantageously employed. h ulp ric estersemp y according to the present invention may be obtained by treatin thealcohols or olefines with sulphonatmg agents, such as concentratedsulphuric acid, at a temperature up to about 35 C. sulphonic acids beingobtained on working at about 100 C. or in the presence of agentsremoving Water such as anhydrides of strong inorganic polybasic acids orwith the aid of sulphuric anhydride.

The conversion of the said alcohols with the oxygen-containing polybasicmineral acids may be carried out for the production of the sulphuricesters by treating the alcohols with sulphuric acid, or chlorsulphonicacid in the presence of organic inert diluents, and for the productionof the phosphoric esters by acting with phosphorus pentoxide on thealcohols in the presence of organic inert diluents. Small portions ofthe initial materials which have not been converted with the mineralacids, as for example fatty acids, neutral fats, parafiins and the likemay be present in the finished product before it is incorporated withthe soaps.

The quality of the aforesaid esters employed is at least 5 per cent byweight of the soaps but in most cases considerably above 5 per cent willbe used, especially as the sensitivity of the preparations to hard wateris thus diminished; the esters may be employed, for example, inquantities of from 10, 20, 30, or 80 per cent of the soap but for theaforesaid reasons quantities of from 100 to about 1000 per cent arepreferred in order to render the preparations particularly valuable forany purpose and in water of a high degree of hardness.

If desired, soap substitutes may be added as well as salts of all kindsand the soap preparations may be adulterated with protective colloids,as for example albumious substances, vegetable gums, starch and thelike. For many purposes, especiallyfor the dissolution and removalvoffat, oil or like stains, an addition of organic solvents to the soappreparations is advantageous. In order to produce special cosmeticpharmaceutical, insecticidal or germicidal effects, the known and,approved substances The parts are by weight.

Ema/mple 1 80 parts of the sodium salt of the acid sulphuric ester ofcetyl alcohol are intimately worked up with 10 parts of potassium and/orsodium stearate and 10 parts of glycerine' and pressed into moulds. Theproduct is eminently suitable as a bath soap.

Example 2 parts of the disodium salt of the sulphonic acid of stearicacid are ground with 10 parts of Glaubers salt, 10 parts of sodiumpalmitate and 10 parts of trisodium phosphate. A soap powder is obtainedwhich has an excellent cleansing action.

Example 3 80 parts of the neutral sodium salt of the condensationproduct of oleic acid chloride and ethionic acid are intimately mixedwith 15 parts of sodium palmitate and 5 parts of sodium perborate. Theproduct obtained has an excellent cleansing and bleaching action even inhard water.

Similar results are obtained by. employing taurine instead of ethionicacid.

E wample 4 30 parts of the neutral ammonium salt of the acid sulphuricester of stearyl alcohol together with 30 parts of ammonium oleate and40 parts of water are kneaded into a homogeneous paste. The preparationpossesses a good cleansing action which may be increased by the additionof 5 parts of cyclohexanol.

Example 5 100 parts of a normal grain soap paste containing about 65 percent of fatty acid is kneaded with a concentrated solution of 10 partsof the neutral sodium salt of the sulphuric ester of laur 1 alcohol. Themixture is worked up in t e usual manner into shreds or flakes which aredistinguished by their high solubility. 1 per cent by weight of the massof purified lemon grass oil may be added in order to give a. fresh smellto the soap.

Ewample 6' 25 parts of an about 80 per cent aqueous paste of the neutralsodium salt of the prodnot obtained by the action of gaseous sulphurtrioxide on dodecylene are worked into 100 parts of a solid coco soap.The soap preparation obtained has an excellent foammg power.

For preparing a very good bath soap, from /2 to 1 per cent of a suitableperfume composition stable to alkali may be added.

What I claim is 1. Soap preparations comprising an alkali metal soap andfrom 100 to about 1000 per cent, by weight of the soap, of neutralizedsulphonic acid corresponding to the formula R.COO.C H .SO H in whichRCOO is the radicle of a fatty acid of vegetal origin.

2. Soap preparations comprising an alkali metal soap and from 100 toabout 1000 per cent, by. weight of the soap, of an alkali metal salt ofa sul honic acid corresponding to the formula R. OO.G H.,.SO H in whichH.600 is the radicle of a fatty acid of vegetal origin.

3. Soap preparations comprising an alkali metal soap and from 100 toabout 1000 per cent, by weight of the soap, of an alkali metal salt of asul honic acid corresponding to the formula R. OO.C H .SO H in whichRG00 is the radicle of oleic acid.

4. Soap preparations comprising a soap derived from a water-soluble baseand at least 5 per cent, by weight of the soap, of a true sulphonic acidsubstance containing at least 8 carbon atoms and corresponding to theformula RCOX- -R SO -OMe in which R denotes an aliphatic radicle, XRdenotes an oxalkylene (O-R or an amino-alkylene radicle and Me denotesan alkali radicle.

5. Soap preparations comprising a soap derived from a water-soluble baseand from 100 to about 1000 per cent, by weight of the soap, of a truesulphonic acid substance containing at least 8 carbon atoms andcorresponding to the formula.

in which R denotes an aliphatic radicle, ---XR denotes an oxalkylene (ORor an aminolene radicle and Me denotes an alkali radio e.

6. Soap preparations comprising an alkali metal soap and from 100 toabout 1000 per 5 cent, by weight of the soap, of a true sulmy hand. 5JOSEPH NUESSLEIN.

